AirHint found the following cheapest return flights from Toronto (YYZ) to Prague (PRG) in September 2025 (see full year).

Return flights

28 Sep - 15 Oct	Condor
29 Sep - 10 Oct	Condor
19 Sep - 27 Sep	Air Transat
10 Sep - 17 Sep	Air Transat
09 Sep - 16 Sep	Aer Lingus
16 Sep - 23 Sep	Aer Lingus
10 Sep - 26 Sep	Condor
08 Sep - 19 Sep	Porter Airlines (Canada) Ltd
16 Sep - 24 Sep	Condor
01 Sep - 10 Sep	Air Transat
07 Sep - 14 Sep	Condor
12 Sep - 17 Sep	WestJet
03 Sep - 05 Oct	Condor

Also check the deals for one-way flights from Toronto to Prague in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Toronto to Prague in September from 525€

Return flights